a builder's codex
codex · operators · Shreya Shankar

Shreya Shankar

Bio

Shreya Shankar. Co-author of the LLM-evaluation methodology captured in the corpus alongside Hamel Husain. The work treats evals as error analysis, argues for single binary LLM-as-judge rubrics over Likert scales, and uses open-then-axial coding to turn real failures into the categories a judge should measure.

Operating themes

Insights · 5

Tier B · ai-engineering
Error analysis is the most-skipped step in AI evals and gives the most leverage per hour invested
Tier B · ai-native · engineering
Binary pass/fail annotation produces better quality than Likert scales by forcing judgment on uncertain cases
Tier B · ai-native · engineering
Excess context in LLM judge prompts degrades accuracy; judges need only the evidence relevant to the specific failure
Tier B · ai-native · engineering
Automated eval agents cannot detect failures that require your product's definition of good user experience
Tier B · engineering · ai-native
Evals close the harness improvement loop; treating them as a post-deployment quality check removes the signal that guides agent system improvement
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